When your doctor prescribes a liver ultrasound, you may feel a little scared and nervous. "What will this find?" and "Will it hurt?" are probably the questions that come to mind. But this is actually a very simple, painless test. Today, we will talk about everything clearly and simply.
What is this liver ultrasound scan?
Simply put, this is a painless test to look at your liver and the organs around it. It's like a scan to see a baby in the womb. It involves sending high-frequency sound waves that are inaudible to our ears into the body and then creating an image on a computer screen based on the way those waves bounce back. You don't hear or feel these sound waves. All you feel is the sonographer moving a small instrument (probe) over your abdomen.
Why would a doctor recommend this scan?
There are several reasons why your doctor may order this test:
- If you have symptoms of liver disease: If you have symptoms of liver disease (for example, yellowing of the eyes, stomach pain , loss of appetite ), this can help determine what is causing it.
- Based on other test results: If your blood test results indicate a liver problem, this scan may be ordered to investigate further.
- If you already have liver disease: If you already have a liver condition, this scan is also done to see how it is doing and whether there is any improvement after treatment.
Because it can be done quickly and easily, doctors often refer to this test first if they suspect a liver problem.
What kind of liver problems can this scan detect?
A liver ultrasound scan can reveal a lot. It can identify all three main stages of liver disease.
- Fat accumulation in the liver : We call this `(Steatotic liver disease )` or `(Fatty Liver)`.
- In the liverInflammation and swelling: We call this condition `(Hepatitis)`.
- Scarring of the liver: This is a more serious condition. It is called ``Fibrosis`` or ``Cirrhosis``.
In addition, it can detect abnormal spots, lumps, or tumors on or inside the liver (liver lesions). Also, some specialized types of ultrasound scans can measure how blood flows through the liver and how dense the liver tissue is.
Diseases that can be detected by liver ultrasound scan
Although this scan alone is not enough to confirm a diagnosis, it can be a great help in guiding the doctor in the right direction. Sometimes, further tests (such as a biopsy) may be necessary depending on the results of the scan.
| Disease category | Recognizable situations |
|---|
| Chronic liver disease | Hepatitis, steatosis, cirrhosis |
| Liver lumps/tumors | Liver cysts, liver cancer, hemangioma, etc. |
| Blood vessel problems | Reduced blood flow to the liver (ischemia), portal hypertension |
| Problems with the gallbladder and bile ducts | Fluid accumulation in the abdomen (Ascites), Cholecystitis, Gallstones |
Are there different types of liver ultrasound scans?
Yes, there are several types of scans that are performed depending on the need.
| Scan type | Simply put, what does it do? |
|---|
| Standard Ultrasound | This is the most common procedure. It examines the organs in the upper right side of the abdomen, such as the liver, gallbladder, and bile ducts. |
| Doppler scan (Doppler Ultrasound) | This mainly looks at how blood flows in and through the liver. It helps measure the speed and direction of blood vessels. |
| Elastography Ultrasound | This special scan measures how stiff (stiffness) or scarred (fibrosis) the liver tissue is. This is important for diagnosing conditions like cirrhosis. |
| Contrast scan (Contrast-enhanced Ultrasound - CEUS) | This is done if you need to get a closer look at a lump or tumor that was detected on a regular scan. This involves injecting a liquid containing harmless gas bubbles into a vein in your arm. Since it is not a dye, the risk of allergic reactions is very low. |
Do I need to prepare before the scan?
One advantage of this is that it doesn't require much preparation. However, your doctor may ask you
to fast for 6 to 12 hours before the scan, if possible.
Why do you say that?
This is because food or gas in the stomach can interfere with the sound waves of the scan. It also helps to see the gallbladder clearly.
Is the water drinkable?
It's best to ask your doctor for advice about drinking water. Sometimes they'll tell you not to drink water for a few hours. Other times, a full bladder can make the scan easier. So, be sure to ask your doctor about it.
What happens during the scan?
This is a very simple procedure. 1. You will lie down on an examination table. 2. The sonographer will apply a warm, clear gel to your upper abdomen. This gel will help the probe to make good contact with your skin. 3. The probe will then be moved slowly over the area where the gel was applied. You will not usually feel much pressure. However, if you have pain in that area, you may feel some discomfort. 4. As the probe is moved, images of your liver and surrounding organs will appear on a computer screen. 5. The sonographer will take snapshots and possibly short videos. You may be asked to change positions or hold your breath for a while during this time. The entire procedure usually takes
about 30 minutes . It may take longer if you are having a special scan.
What happens after the scan?
After the scan is complete, you can go home, eat, and go about your daily activities as normal. The images from the scan are sent to a radiologist. He or she will review the images and create a detailed report. Once your doctor receives the report, he or she will discuss the results with you. It may take a few days for the results to be available.
What is a normal and abnormal scan report?
Some of the words on your scan report may be difficult to understand. Let's take a simple look at it.
- Normal Liver: On a scan, a normal liver has a regular size, shape, and a specific shade of gray. Its surface is smooth and free of lumps .
- Abnormal Liver: If the liver is enlarged or shrunken, or if the surface is rough, it may be a disease. The presence of spots or lumps on the surface may be a cyst or a cancerous condition. Changes in the color (brightness) of the liver are also important.
| The word that may appear in the report | Simple meaning |
|---|
| Echogenicity / Echotexture | This refers to the brightness of the liver tissue. If the brightness is too bright, it may indicate fatty liver. If the brightness is too low or dark, it may indicate inflammation. |
| Lesions | This refers to any unusual spots, lesions, or lumps in the liver. The scan can identify whether it is a cyst or a solid tumor. |
| Ascites | This is the accumulation of fluid in the abdominal cavity around the liver. This is usually a sign of severe liver disease. |
| Fibrosis | This means that scar tissue has formed in the liver. The extent of this can be measured with an elastography scan. |
Take-Home Message
- A liver ultrasound scan is a very safe, painless, and commonly performed test, so don't be unnecessarily afraid of it.
- This will greatly help the doctor get a basic understanding of the condition of your liver.
- Simple preparations, such as not eating before the scan, may be necessary. Ask your doctor about this and follow his/her instructions.
- Don't worry about trying to understand the scan report on your own. Your doctor will give you the most accurate explanation of the results.
- If you still have any concerns or fears about this test, talk to your doctor about it openly.
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